Results 81 to 90 of about 1,953,556 (348)

Double‐Interpenetrating Composite Bioink for Multi‐Component 3D Bioprinting and Biofabrication

open access: yesAdvanced Functional Materials, EarlyView.
Marine‐polysaccharides‐derived double interpenetrating network hydrogel‐based bioink, combining the attributes of physical and ionic crosslinking, enables room‐temperature bioprinting of mechanically defined structures that can be handled and are cytocompatible.
Fabian Tribukait‐Riemenschneider   +1 more
wiley   +1 more source

STUDY MINERAL COLUMBITE- TANTALITE WITH METALLURGICAL APPROACH TO DEFINE THE USE OF SAND DEPOSITS WITH HEAVY MINERALS

open access: yesAvances en Ciencias e Ingeniería, 2016
The aim of this work was to study a sample of sand from a site of Bolivia, in order to obtain a pre-concentrate high grade Nb-Ta. Particle size analysis was performed and quantified in each class the chemical composition of Nb and Ta.
Graciela A. Castro, Andrea A. Díaz
doaj  

Removal of Tramp Elements within 7075 Alloy by Super-Gravity Aided Rheorefining Method

open access: yesMetals, 2018
An investigation was made on the super-gravity aided rheorefining process of recycled 7075 aluminum alloy in order to remove tramp elements. The separation temperatures in this study were selected as 609 °C, 617 °C and 625 °C. And the gravity
Lei Guo   +3 more
doaj   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

open access: yesAdvanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg   +5 more
wiley   +1 more source

Phase separation in a gravity field

open access: yesDiscrete and Continuous Dynamical Systems - S, 2011
We prove here well-posedness and convergence to equilibria for the solution trajectories associated to a model for solidification of a liquid content of a rigid container in a gravity field. We observe that the gravity effects, which can be neglected without considerable changes of the process on finite time intervals, have a substantial influence on ...
P. Krejci, E. Rocca, J. Sprekels
openaire   +4 more sources

A mineralogical investigation into the pre-concentration of the Nechalacho deposit by gravity separation

open access: yesMinerals Engineering, 2018
The Nechalacho rare earth element (REE) deposit is located in the Northwest Territories, Canada. Of the various REE-bearing minerals in the deposit, zircon is significant due to its elevated heavy rare earth element (HREE) content. Most studies performed
C. Marion   +9 more
semanticscholar   +1 more source

Multidimensional Cellular Micro‐Compartments to Model Invasive Lobular Carcinoma Dormancy

open access: yesAdvanced Healthcare Materials, EarlyView.
Invasive lobular carcinoma (ILC) is an understudied subtype of breast cancer that is susceptible to late recurrences. In this study, micro‐compartmentalization techniques spanning multiple dimensions, including 2D, pseudo‐3D, and 3D, are integrated to uncover the mechanisms underlying ILC dormancy, revealing the central role of p27Kip1.
Xilal Y. Rima   +15 more
wiley   +1 more source

Microsphere‐Templated Conductive Syntactic Foams for Recyclable and Additively Manufactured Soft Electronics

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces a microsphere‐templated strategy to fabricate reprocessable PEDOT:PSS syntactic foams with tunable porosity, stable conductivity, and 3D printability. In situ PEDOT:PSS coatings create a conductive network that maintains electrical performance at high void fractions.
Gayaneh Petrossian   +7 more
wiley   +1 more source

Application of gravity separators for enrichment of South Chah-Palang tungsten ore [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2016
In the present study, the possibility of concentrating tungsten-copper vein ore in South Chah-Palang was examined using gravity separators including Jig Machine (-2360+600 μm), shaking table (-600+120 μm), and multi-gravity separator (MGS) (-120 μm). The
Hamid Hedayati Sarab-shahrak   +3 more
doaj  

Transport Processes and Separation in Zero-Gravity Destillation [PDF]

open access: yes, 2018
Zero-gravity distillation is a micro distillation process, in which the liquid flow is driven by capillary forces, similar to a heat pipe. In this study, the separation of ethanol-methanol mixtures in a zero-gravity distillation apparatus is investigated.
Gambaryan-Roisman, Tatiana   +9 more
core   +1 more source

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